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■ Don’t make statements just because most people agree with them.

Nobody honestly believes that people will get as much done in four days as in five.

This statement is based on the idea that if most people believe something, it must be true. But “most people” can be wrong. In fact, several studies show that people work more efficiently during a four-day work week, and companies have less employee turnover.

■ Don’t make statements that compare things that aren’t really like each other.

Offering workers a four-day week is like offering prisoners early parole for good behavior.

This statement compares workers to prisoners, as if having a job is a punishment for something they have done wrong. It also assumes that the shorter week is an incentive for workers to stop behaving badly. The comparison is misleading.